CN105675309A - Power battery collision testing device and method for pure electric vehicle - Google Patents
Power battery collision testing device and method for pure electric vehicle Download PDFInfo
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- CN105675309A CN105675309A CN201610177037.0A CN201610177037A CN105675309A CN 105675309 A CN105675309 A CN 105675309A CN 201610177037 A CN201610177037 A CN 201610177037A CN 105675309 A CN105675309 A CN 105675309A
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- 238000009863 impact test Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 description 6
- 238000012795 verification Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
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- 238000002485 combustion reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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Abstract
The invention discloses a power battery collision testing device and a testing method of a pure electric vehicle, wherein the power battery collision testing device comprises: the test vehicle is provided with a power battery arranged at the bottom; the test vehicle is arranged on the guide rail and can move to a preset collision position; the collision element is arranged at a preset collision position, and the collision element collides with the power battery at the preset collision position; the acceleration control system is used for controlling the test vehicle to move to a preset collision position under the unmanned condition; and the brake control system is used for controlling the brake of the test vehicle after the collision occurs. This pure electric vehicles's power battery collision test device can effectively simulate under the vehicle holds in the palm the collision state of power battery under the end the condition, and the electricelectric of being convenient for pure electric vehicles is safe to be verified and is detected.
Description
Technical field
The present invention relates to pure electric automobile technical field, in particular to electrokinetic cell crash tests device and the method for testing of a kind of pure electric automobile.
Background technology
At present, the checking of pure electric automobile crashworthiness is detected basic consistent with conventional fuel oil automobile, generally only carries out the impact test of front part of vehicle and lateral location. But for pure electric automobile, due to its barycenter arrange and space layout etc. all with conventional fuel oil vehicle difference to some extent, therefore, existing crash tests device can not meet the testing requirement of pure electric vehicle. For this, urgent need is specifically designed for pure electric automobile and carries out crash tests.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique. For this, the present invention propose a kind of can the effective electrokinetic cell crash tests device of the pure electric vehicle of the collision status of electrokinetic cell in simulating vehicle backing situation.
The application is based on inventor to the discovery of following facts and problem and what understanding was made: electrokinetic cell is generally arranged at bottom, and pure electric automobile generation backing phenomenon in actual travel process, travel safety is poor.
The invention allows for a kind of method of testing applying above-mentioned test device.
The electrokinetic cell crash tests device of the pure electric automobile of embodiment according to a first aspect of the present invention, including: test vehicle, test vehicle has the electrokinetic cell put at the end; Guide rail, test vehicle is arranged on guide rail and is moveable to default position of collision; Collision element, collision element is arranged on default position of collision place, collides element at default position of collision and collides with electrokinetic cell; Acceleration-controlled system, acceleration-controlled system moves to default position of collision for controlling test vehicle in unpiloted situation; And braking control system, braking control system for controlling test car braking after collision occurs.
The electrokinetic cell crash tests device of the pure electric automobile of embodiment according to a first aspect of the present invention, it is possible to the effectively collision status of electrokinetic cell in simulating vehicle backing situation, it is simple to the electric safety verification of pure electric automobile and detection.
Alternatively, described acceleration-controlled system includes: external equipment, described external equipment electrically connects with the controller of described test vehicle, when described external equipment sends signal for faster to described controller, to control described drive motor and to work so that described test vehicle moves to default position of collision.
Alternatively, described test vehicle has OBD interface, and described external equipment is connected with the OBD interface of described test vehicle to send signal for faster to described controller and gather the operational data of described controller.
Alternatively, described braking control system includes: auxiliary power module, and described auxiliary power module is for electrically connecting with described controller when the electrical connection of the controller of described test vehicle with electrokinetic cell disconnects; And braking executive component, described braking executive component drives the brake pedal of described test vehicle to move to application position when the electrical connection of described electrokinetic cell with described controller disconnects.
Alternatively, described collision element has the cutting cutter for the bottom of described electrokinetic cell carries out cutting test.
Alternatively, described cutting cutter is to the 1/3-1/2 that the cutting degree of depth of described electrokinetic cell is described electrokinetic cell height.
Alternatively, the bearing of trend of described cutting cutter is consistent with the described guide rail bearing of trend at described default position of collision place.
Alternatively, described collision element also includes mounting bracket, and described cutting cutter is connected in described mounting bracket, and the position-adjustable that described cutting cutter is in described mounting bracket.
Alternatively, described collision element has the ram for described electrokinetic cell carries out passivity impact test.
Alternatively, described guide rail includes the first guide rail and the second guide rail that be arranged in parallel, and the wheel of described test vehicle is rigid wheel, and wherein the wheel of side is suitable with described first guide rail, and the wheel of opposite side is suitable with described second guide rail.
Alternatively, described first guide rail and described second guide rail are connected by the multiple lateral connection beams being vertically connected between the two.
Alternatively, described first guide rail and described second guide rail linearly extend, and described collision element is arranged between described first guide rail and described second guide rail.
Alternatively, the outer peripheral face of described wheel is provided with the annular groove coordinated with respective track.
The method of testing applying above-mentioned test device of embodiment according to a second aspect of the present invention, including: S100: acceleration-controlled system sends signal for faster to the controller of test vehicle, and described test vehicle moves to default position of collision and electrokinetic cell and collision element collides; S200: judge whether the electrical connection of described electrokinetic cell and described controller disconnects; S300: if it is, the auxiliary power module of braking control system electrically connects with described controller, the braking executive component of described braking control system drives the brake pedal of test vehicle to brake to send brake signal to described controller.
Thus, this electrokinetic cell crash tests device is in conjunction with the feature of pure electric automobile self, outside traction electric machine and relevant device are dispensed, the acceleration testing vehicle under unmanned state is achieved by the mode of external equipment remote control, and realize skidding when electrokinetic cell lost efficacy by auxiliary power module and braking executive component, method of testing can fully meet the simplation verification demand during collision of power battery of pure electric automobile inclusion generation backing, has higher safety and reliability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electrokinetic cell crash tests device of pure electric automobile according to embodiments of the present invention.
Accompanying drawing labelling:
Electrokinetic cell crash tests device 100, tests vehicle 10, wheel 11, guide rail 20, the first guide rail 21, the second guide rail 22, lateral connection beam 23, collides element 30, cutting cutter 31, mounting bracket 32, pad 40.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings. The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The electrokinetic cell crash tests device 100 of the pure electric automobile of according to a first aspect of the present invention embodiment is described in detail referring to Fig. 1.
As it is shown in figure 1, the electrokinetic cell crash tests device 100 of the pure electric automobile of embodiment includes according to a first aspect of the present invention: test vehicle 10, guide rail 20, collision element 30, acceleration-controlled system and braking control system.
Test vehicle 10 has the electrokinetic cell put at the end, and test vehicle 10 is arranged on guide rail 20 and is moveable to default position of collision, and collision element 30 is arranged on default position of collision place, collides element 30 at default position of collision and collides with electrokinetic cell. Wherein, acceleration-controlled system moves to default position of collision for controlling test vehicle 10 in unpiloted situation, and braking control system is braked for controlling test vehicle 10 after collision occurs.
The electrokinetic cell crash tests device 100 of pure electric automobile according to embodiments of the present invention, test vehicle 10 is made to accelerate on guide rail 20 and move to default position of collision by acceleration-controlled system, and then make the electrokinetic cell that the end puts collide with collision element 30, and after collision occurs, control car braking, so, the not only collision status of electrokinetic cell in effective simulating vehicle backing situation, it is easy to electric safety verification and the detection of pure electric automobile, and significantly improves the safety and reliability of test.
In certain embodiments, acceleration-controlled system includes external equipment, external equipment electrically connects with the controller of test vehicle 10, and with when external equipment sends signal for faster to controller, controller controls drive motor work so that test vehicle 10 moves to default position of collision. Thus, control drive motor work by external equipment and accelerate with the vehicle realizing under unmanned state, instead of human body pushes pedals and send signal for faster, it is achieved the remote control of vehicle is accelerated, and has higher safety.
Further, test vehicle 10 has OBD interface, and external equipment is connected with the OBD interface of test vehicle 10 with the operational data to controller transmission signal for faster and acquisition controller. Thus, it is connected with external equipment (such as computer terminal) by vehicle OBD (onboard diagnostic system) interface, by the corresponding strategies debugging software on control external equipment so that motor signal for faster is wirelessly transmitted to vehicle control device. So, the remote control to vehicle can not only be realized and accelerate, and substantial amounts of vehicle-operating data can be gathered, it is simple to analyze the electric security feature of automobile under backing state, make test analysis more comprehensively, accurately.
Other embodiments according to the present invention, braking control system includes auxiliary power module and braking executive component. When the electrical connection of the controller with electrokinetic cell of testing vehicle 10 disconnects, auxiliary power module is electrically connected with the controller, and braking executive component drives the brake pedal of test vehicle 10 to move to application position.
Thus, extra auxiliary power module is adopted to realize pedal brake with braking executive component, avoid after collision occurs blast, brake fade that the destruction that full-vehicle control circuit produces is caused by combustion case, significantly improve the safety and reliability of test. Additionally, complete equipment cost is relatively low, save development cost.
Specifically, braking executive component includes being arranged on the lower pressing spring above brake pedal, be arranged on and above push away spring and electric magnet below brake pedal, under non-brake state, electric magnet is not charged, brake pedal lower pressing spring and above push away spring effect under be in released position, when the electrical connection of the brake with electrokinetic cell of testing vehicle 10 disconnects, auxiliary power module is electrically connected with the controller, and make electric magnet obtain electric and with body platform adhesive, drive pedal to move downwardly to and step on position, thus achieve the braking of collision rift vehicle.
It will be appreciated by those skilled in the art that, the present invention is not limited to this, the acceleration-controlled system of crash tests device and braking control system can also adopt powered attendant-controlled wheelchairs form to realize, as drawn by hawser by group of motors or being drawn to realize the test acceleration of vehicle 10, braking by trailer pole by other vehicles.
Backing situation according to actual vehicle collision is different, and different types of collision element 30 can be adopted to realize various impact simulation. Such as, in some embodiments, collision element 30 has the ram for electrokinetic cell carries out passivity impact test. it is possible to the impact that battery is collided by test passivity barrier;
In further embodiments, collision element 30 has the cutting cutter 31 for the bottom of electrokinetic cell carries out cutting test. So adopt sharp cutting cutter 31 that battery is carried out cutting test. Alternatively, the bearing of trend of cutting cutter 31 is consistent with the guide rail 20 bearing of trend at default position of collision place. It is achieved in that the maximization of cutting length, it is simple to the electric security performance of electrokinetic cell under test extreme case.
Further, the cutting cutter 31 1/3-1/2 that the cutting degree of depth is electrokinetic cell height to electrokinetic cell. Specifically, the bottom up cutting of cutting cutter 31 ultromotivity battery is to the 1/3-1/2 of electrokinetic cell height.
Alternatively, collision element 30 also includes mounting bracket 32, and cutting cutter 31 is connected in mounting bracket 32, and the position-adjustable that cutting cutter 31 is in mounting bracket 32. Thus, can being arranged as required to the cutting degree of depth and the cutting angle of cutting cutter 31, the collision status making test unit simulation is more various.
According to some embodiments of the present invention, as shown in Figure 1, guide rail 20 includes the first guide rail 21 and the second guide rail 22 be arrangeding in parallel, the wheel 11 of test vehicle 10 is rigid wheel 11, wherein the wheel 11 of side and the first guide rail 21 are suitable, and the wheel 11 of opposite side and the second guide rail 22 are suitable. Alternatively, the outer peripheral face of wheel 11 is provided with the annular groove coordinated with respective track.
So, after acceleration-controlled system sends signal for faster to the controller that test is measured, the wheel 11 of test vehicle 10 side rolls along the first guide rail 21, the wheel 11 of opposite side rolls along the second guide rail 22, thus, make test vehicle 10 can travel on predetermined trajectory, and keep straight-line travelling before the collision afterwards, it is ensured that test site and testing crew safety.
In the specific embodiment shown in Fig. 1, the first guide rail 21 and the second guide rail 22 are connected by the multiple lateral connection beams 23 being vertically connected between the two. Thus, the connection of the first guide rail 21 and the second guide rail 22 is tightr, and the overall construction intensity of guide rail 20 is better.
Specifically, spacing between first guide rail 21 and the second guide rail 22 is consistent with the wheel spacing of both sides wheel 11, between multiple lateral connection beams 23, the distance between parallel to each other and adjacent two lateral connection beams 23 is fixed value, guide rail 20 entirety can be fixed on sufficiently long straight line cement pavement by expansion bolt, and the height of guide rail 20 can by pad 40 leveling.
In certain embodiments, the first guide rail 21 and the second guide rail 22 linearly extend, and collision element 30 is arranged between the first guide rail 21 and the second guide rail 22. Thus, test vehicle 10 linearly can accelerate on guide rail 20, it is ensured that the stability of test vehicle 10 motion.
The method of testing of the electrokinetic cell crash tests device of application above-described embodiment of embodiment according to a second aspect of the present invention, including:
S100: acceleration-controlled system sends signal for faster to the controller of test vehicle, and test vehicle moves to default position of collision and electrokinetic cell and collision element collides.
S200: judge whether the electrical connection of electrokinetic cell and controller disconnects.
S300: if it is, the auxiliary power module of braking control system is electrically connected with the controller, the braking executive component of braking control system drives the brake pedal of test vehicle to brake to send brake signal to controller.
Thus, this electrokinetic cell crash tests device is in conjunction with the feature of pure electric automobile self, outside traction electric machine and relevant device are dispensed, the acceleration testing vehicle under unmanned state is achieved by the mode of external equipment remote control, and realize skidding when electrokinetic cell lost efficacy by auxiliary power module and braking executive component, method of testing can fully meet the simplation verification demand during collision of power battery of pure electric automobile inclusion generation backing, has higher safety and reliability.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic. Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature. In describing the invention, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral; Can be mechanically connected, it is also possible to be electrical connection or each other can communication; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction. For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact. And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature. Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner. Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (14)
1. the electrokinetic cell crash tests device of a pure electric automobile, it is characterised in that including:
Test vehicle, described test vehicle has the electrokinetic cell put at the end;
Guide rail, described test vehicle is arranged on described guide rail and is moveable to default position of collision;
Collision element, described collision element is arranged on described default position of collision place, collides with described electrokinetic cell colliding element described in described default position of collision;
Acceleration-controlled system, described acceleration-controlled system moves to default position of collision for controlling test vehicle in unpiloted situation; And
Braking control system, described braking control system for controlling described test car braking after collision occurs.
2. the electrokinetic cell crash tests device of pure electric automobile according to claim 1, it is characterised in that described acceleration-controlled system includes:
External equipment, described external equipment electrically connects with the controller of described test vehicle, when described external equipment sends signal for faster to described controller, to control described drive motor and to work so that described test vehicle moves to default position of collision.
3. the electrokinetic cell crash tests device of pure electric automobile according to claim 2, it is characterized in that, described test vehicle has OBD interface, and described external equipment is connected with the OBD interface of described test vehicle to send signal for faster to described controller and gather the operational data of described controller.
4. the electrokinetic cell crash tests device of pure electric automobile according to claim 1, it is characterised in that described braking control system includes:
Auxiliary power module, described auxiliary power module is for electrically connecting with described controller when the electrical connection of the controller of described test vehicle with electrokinetic cell disconnects; And
Braking executive component, described braking executive component drives the brake pedal of described test vehicle to move to application position when the electrical connection of described electrokinetic cell with described controller disconnects.
5. the electrokinetic cell crash tests device of pure electric automobile according to claim 1, it is characterised in that described collision element has the cutting cutter for the bottom of described electrokinetic cell carries out cutting test.
6. the electrokinetic cell crash tests device of pure electric automobile according to claim 5, it is characterised in that described cutting cutter is to the 1/3-1/2 that the cutting degree of depth of described electrokinetic cell is described electrokinetic cell height.
7. the electrokinetic cell crash tests device of pure electric automobile according to claim 5, it is characterised in that the bearing of trend of described cutting cutter is consistent with the described guide rail bearing of trend at described default position of collision place.
8. the electrokinetic cell crash tests device of pure electric automobile according to claim 5, it is characterized in that, described collision element also includes mounting bracket, and described cutting cutter is connected in described mounting bracket, and the position-adjustable that described cutting cutter is in described mounting bracket.
9. the electrokinetic cell crash tests device of pure electric automobile according to claim 1, it is characterised in that described collision element has the ram for described electrokinetic cell carries out passivity impact test.
10. the electrokinetic cell crash tests device of pure electric automobile according to claim 1, it is characterized in that, described guide rail includes the first guide rail and the second guide rail that be arranged in parallel, the wheel of described test vehicle is rigid wheel, wherein the wheel of side is suitable with described first guide rail, and the wheel of opposite side is suitable with described second guide rail.
11. the electrokinetic cell crash tests device of pure electric automobile according to claim 10, it is characterised in that described first guide rail and described second guide rail are connected by the multiple lateral connection beams being vertically connected between the two.
12. the electrokinetic cell crash tests device of pure electric automobile according to claim 10, it is characterised in that described first guide rail and described second guide rail linearly extend, and described collision element is arranged between described first guide rail and described second guide rail.
13. the electrokinetic cell crash tests device of pure electric automobile according to claim 10, it is characterised in that the outer peripheral face of described wheel is provided with the annular groove coordinated with respective track.
14. the method for testing of the electrokinetic cell crash tests device applied as according to any one of claim 1-13, it is characterised in that including:
S100: acceleration-controlled system sends signal for faster to the controller of test vehicle, and described test vehicle moves to default position of collision and electrokinetic cell and collision element collides;
S200: judge whether the electrical connection of described electrokinetic cell and described controller disconnects;
S300: if it is, the auxiliary power module of braking control system electrically connects with described controller, the braking executive component of described braking control system drives the brake pedal of test vehicle to brake to send brake signal to described controller.
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Inventor after: Yue Wei Inventor after: Wang Yingliang Inventor after: Ma Liang Inventor after: Yang Chunsheng Inventor after: Dong Yinglei Inventor before: Wang Yingliang Inventor before: Yue Wei Inventor before: Ma Liang Inventor before: Yang Chunsheng Inventor before: Dong Yinglei |